From: Wenwu Ma <wenwux.ma@intel.com>
To: dev@dpdk.org, fengchengwen@huawei.com
Cc: songx.jiale@intel.com, Wenwu Ma <wenwux.ma@intel.com>, stable@dpdk.org
Subject: [PATCH v2] dmadev: fix structure alignment
Date: Fri, 15 Mar 2024 09:43:31 +0800 [thread overview]
Message-ID: <20240315014331.1376720-1-wenwux.ma@intel.com> (raw)
In-Reply-To: <20240308053711.1260154-1-wenwux.ma@intel.com>
The structure rte_dma_dev needs only 8 byte alignment.
This patch replaces __rte_cache_aligned of rte_dma_dev
with __rte_aligned(8).
Fixes: b36970f2e13e ("dmadev: introduce DMA device library")
Cc: stable@dpdk.org
Signed-off-by: Wenwu Ma <wenwux.ma@intel.com>
---
v2:
- Because of performance drop, adjust the code to
no longer demand cache line alignment
---
lib/dmadev/rte_dmadev_pmd.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/dmadev/rte_dmadev_pmd.h b/lib/dmadev/rte_dmadev_pmd.h
index 58729088ff..b569bb3502 100644
--- a/lib/dmadev/rte_dmadev_pmd.h
+++ b/lib/dmadev/rte_dmadev_pmd.h
@@ -122,7 +122,7 @@ enum rte_dma_dev_state {
* @internal
* The generic data structure associated with each DMA device.
*/
-struct __rte_cache_aligned rte_dma_dev {
+struct __rte_aligned(8) rte_dma_dev {
/** Device info which supplied during device initialization. */
struct rte_device *device;
struct rte_dma_dev_data *data; /**< Pointer to shared device data. */
--
2.25.1
next prev parent reply other threads:[~2024-03-15 1:55 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-08 5:37 [PATCH] dmadev: fix structure alignment Wenwu Ma
2024-03-08 7:01 ` fengchengwen
2024-03-15 1:43 ` Wenwu Ma [this message]
2024-03-15 6:02 ` [PATCH v2] " Tyler Retzlaff
2024-03-15 6:06 ` fengchengwen
2024-03-15 6:25 ` Ma, WenwuX
2024-03-15 7:44 ` Ma, WenwuX
2024-03-15 8:31 ` fengchengwen
2024-03-15 9:27 ` Ma, WenwuX
2024-03-20 4:11 ` fengchengwen
2024-03-20 7:34 ` Ma, WenwuX
2024-03-19 9:48 ` Jiale, SongX
2024-03-20 7:23 ` [PATCH v3] " Wenwu Ma
2024-03-20 9:31 ` fengchengwen
2024-03-20 11:37 ` Thomas Monjalon
2024-03-21 1:25 ` Ma, WenwuX
2024-03-21 8:30 ` Thomas Monjalon
2024-03-21 8:57 ` Ma, WenwuX
2024-03-21 9:18 ` Ma, WenwuX
2024-03-21 10:06 ` Thomas Monjalon
2024-03-21 16:05 ` Tyler Retzlaff
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240315014331.1376720-1-wenwux.ma@intel.com \
--to=wenwux.ma@intel.com \
--cc=dev@dpdk.org \
--cc=fengchengwen@huawei.com \
--cc=songx.jiale@intel.com \
--cc=stable@dpdk.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.